CN101334307A - Servo- type level meter - Google Patents

Servo- type level meter Download PDF

Info

Publication number
CN101334307A
CN101334307A CN 200810117864 CN200810117864A CN101334307A CN 101334307 A CN101334307 A CN 101334307A CN 200810117864 CN200810117864 CN 200810117864 CN 200810117864 A CN200810117864 A CN 200810117864A CN 101334307 A CN101334307 A CN 101334307A
Authority
CN
China
Prior art keywords
servo
level meter
contact
type level
float
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 200810117864
Other languages
Chinese (zh)
Other versions
CN101334307B (en
Inventor
范明军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 200810117864 priority Critical patent/CN101334307B/en
Priority to PCT/CN2008/073491 priority patent/WO2010015132A1/en
Publication of CN101334307A publication Critical patent/CN101334307A/en
Application granted granted Critical
Publication of CN101334307B publication Critical patent/CN101334307B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/40—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements
    • G01F23/44—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements using electrically actuated indicating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/0023—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm with a probe suspended by a wire or thread
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/0038—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm using buoyant probes

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

The invention discloses a servo liquid level meter which comprises a floater which is provided with measuring elements, such as a temperature sensor, a pressure sensor and an interface sensor, etc., and an operating circuit is arranged in the floater, a contact is arranged on the shell of the floater and connected with the operating circuit in the floater. When the floater moves up and down, the contact can be contacted or disconnected with a contact electrode, when the contact electrode is contacted with the contact, a mainboard of the liquid level meter detects the voltage of a power circuit in the floater by the contact, and charges the power circuit in the floater according to the detection result, the operating circuit can also exchange information with the exterior by the contact. The servo liquid level meter has the advantages of convenient usage, stable working voltage and accurate measurement.

Description

Servo-type level meter
Technical field
The present invention relates to a kind of level gauging technology, relate in particular to a kind of servo-type level meter.
Background technology
The storing and transporting system of industries such as liquid level gauge is widely used in oil, chemical industry, edible oil, beverage, brewage by the measurement to the liquid level of storaging liquid in the various tank bodies, reaches the purpose that deposit and the liquid carried are measured.
The principle of the metering method of liquid level gauge is by measuring liquid level or its variation, according to the sectional area of tank body relevant position, can obtain liquid volume or its variable quantity.According to formula m=ρ V (in the formula, m represents liquid quality, and ρ represents fluid density, and V represents liquid volume), can obtain the amount of liquid of deposit in the tank body or the amount of liquid that from jar, transfers out then.
Liquid level of the prior art is in respect of a lot of types, as contact and contactless direct level gauge, static pressure method etc.
The direct level gauge of contact is to drive float by stepper motor initiatively liquid level or water-oil interface etc. to be measured.Different with the buoyancy in the different liquids in air according to float, battery is equipped with in the position at perception float place in the float, is the power supply of the operating circuit in the float.
There is following shortcoming at least in above-mentioned prior art:
Need often to change battery, very inconvenient; And the supply voltage instability of battery, measuring error is big.
Summary of the invention
The purpose of this invention is to provide a kind of easy to use, measure accurate servo-type level meter.
The objective of the invention is to be achieved through the following technical solutions:
Servo-type level meter of the present invention comprises float, is provided with operating circuit in the described float, and described operating circuit is connected with power circuit, and the housing of described float is provided with the contact, and described contact is connected with described power circuit;
This servo-type level meter also comprises contact electrode, and described contact electrode can contact with described contact or disconnect, and described contact electrode is connected with the liquid level gauge mainboard, and is connected with charhing unit and voltage detection unit by described liquid level gauge mainboard.
As seen from the above technical solution provided by the invention, servo-type level meter of the present invention, because the housing of float is provided with the contact, the interior power circuit of contact and float is connected; Contact electrode can contact with the contact or disconnect, and contact electrode is connected with charhing unit and voltage detection unit.When contact electrode contacted with the contact, charhing unit was connected with the interior power circuit of voltage detection unit and float, can the voltage of the power circuit in the float be detected, and according to the result who detects the float internal power circuit is charged.Solve the powerup issue of operating circuit in the float, easy to use, stable operating voltage, measurement are accurate.
Description of drawings
Fig. 1 is the structural representation of servo-type level meter of the present invention;
Fig. 2 is the schematic block circuit diagram of servo-type level meter of the present invention.
Embodiment
Servo-type level meter of the present invention, its preferable embodiment comprises float 1 as shown in Figure 1, float 1 is connected with the engaged wheel 5 of servo-type level meter by dip stick 4.Stepper motor 7 drives engaged wheels 5 and rotates, and can drive float 1 and move up and down, and the suffered buoyancy of float changes when liquid level changes, and the moment loading of generation can accurately be measured buoyancy in force transducer 8, and according to the measure of the change liquid level of buoyancy.This servo-type level meter also comprises photoelectricity acquisition elements 6, is used to gather the elevation information of dip stick 4, knows the position of float 1.
This servo-type level meter also comprises contact electrode 3, and contact electrode 3 is an annular, and dip stick 4 passes from the center pit of contact electrode 3.
Float 1 is provided with measuring sensors such as temperature sensor 9, pressure transducer 10, interface sensor 11, is provided with operating circuit in the float 1, and operating circuit is connected with power circuit, and the housing of float 1 is provided with contact 2, and contact 2 is connected with power circuit; When float 1 moved up and down, contact electrode 3 can contact with contact 2 or disconnect.Contact electrode 3 is connected with the liquid level gauge mainboard, and is connected with charhing unit and voltage detection unit by the liquid level gauge mainboard, can the voltage of power circuit be detected, and according to the result who detects power circuit is charged.
Contact 2 also is connected with operating circuit, and when contact electrode 3 contacted with contact 2, operating circuit can be by contact 2 and contact electrode 3 and outside interactive information; Here " outside " can be the control module or the liquid level gauge mainboard of servo-type level meter, also can be other control system; Information can be two-way interactive alternately, the data that operating circuit stores can send to the outside, outside steering order also can send to operating circuit.
Dip stick 4 can be used as publicly with power supply ground in the float and is connected, and when contact 2 contacted with contact electrode 3, contact 2 and dip stick 4 formed circuit loops, and operating circuit and power circuit can pass through dip stick 4 ground connection.
The top of float housing is located in contact 2, and one or more can be arranged, preferred 2.
As shown in Figure 2, concrete power circuit comprises energy-accumulating element and power transfer module, operating circuit comprises intelligent data sampling module CPU and measuring sensor, and intelligent data sampling module CPU and measuring sensor can be powered by energy-accumulating element, also can power by power transfer module.
In the specific embodiment, energy-accumulating element can be electric capacity, disposable battery or recharge-able battery, and intelligent data sampling module CPU can power by energy-accumulating element; Power transfer module can be the measuring sensor power supply according to the voltage requirements of measuring sensor, and intelligent data sampling module CPU can control power transfer module and measuring sensor.
Measuring sensor can comprise at least a elements such as temperature sensor, pressure transducer, interface sensor, can also comprise other measuring sensor.
The outer link of power circuit is provided with diode, and the positive pole of diode is used for avoiding being subjected to the interference of power circuit towards power circuit when operating circuit and outside interactive information, can also prevent that the voltage of power circuit from discharging.
Among the present invention, contact electrode is with after the contact of float contacts, voltage detection unit is judged contact voltage, charhing unit is given the charging of the energy-storage travelling wave tube in the float when voltage is low, charging is undertaken by the contact, when charging voltage reaches setting, control module sends acquisition for the intelligent data sampling module CPU in the float by the contact, order according to control module, intelligent data sampling module CPU regularly gathers operation by measuring sensor, and with acquired data storage in the internal memory of oneself, when gathering end, servo-type level meter rises to contact and contact electrode position contacting by stepper motor with float, the storage data in the float is read into control module handle, and obtain corresponding results.Easy to use, stable operating voltage, measurement are accurate.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.

Claims (10)

1, a kind of servo-type level meter comprises float, is provided with operating circuit in the described float, it is characterized in that, described operating circuit is connected with power circuit, and the housing of described float is provided with the contact, and described contact is connected with described power circuit;
This servo-type level meter also comprises contact electrode, and described contact electrode can contact with described contact or disconnect, and described contact electrode is connected with the liquid level gauge mainboard, and is connected with charhing unit and voltage detection unit by described liquid level gauge mainboard.
2, servo-type level meter according to claim 1 is characterized in that, described contact is connected with described operating circuit, and described operating circuit is by described contact and contact electrode and outside interactive information.
3, servo-type level meter according to claim 2 is characterized in that, described power circuit comprises energy-accumulating element and power transfer module.
4, servo-type level meter according to claim 3, it is characterized in that, described operating circuit comprises intelligent data sampling module CPU and measuring sensor, and described energy-accumulating element is powered to described intelligent data sampling module CPU, and described energy-accumulating element is electric capacity or recharge-able battery; Described power transfer module is powered to described measuring sensor, and described intelligent data sampling module CPU sends control signal to described power transfer module and described measuring sensor.
5, servo-type level meter according to claim 4 is characterized in that, described measuring sensor comprises following at least a element: temperature sensor, pressure transducer, interface sensor.
6, servo-type level meter according to claim 1, it is characterized in that, described float is connected with the engaged wheel of described servo-type level meter by dip stick, described contact electrode is an annular, described dip stick passes from the center pit of described contact electrode, and the top of described housing is located in described contact.
7, according to claim 1 or 6 described servo-type level meters, it is characterized in that described contact has one or more.
8, servo-type level meter according to claim 6 is characterized in that, this servo-type level meter also comprises the photoelectricity acquisition elements, is used to gather the elevation information of described dip stick.
9, servo-type level meter according to claim 6 is characterized in that, described operating circuit and power circuit are by described dip stick ground connection.
10, servo-type level meter according to claim 1 is characterized in that, the outer link of described power circuit is provided with diode, and the positive pole of described diode is towards described power circuit.
CN 200810117864 2008-08-06 2008-08-06 Servo- type level meter Active CN101334307B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 200810117864 CN101334307B (en) 2008-08-06 2008-08-06 Servo- type level meter
PCT/CN2008/073491 WO2010015132A1 (en) 2008-08-06 2008-12-12 Servo liquid level meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200810117864 CN101334307B (en) 2008-08-06 2008-08-06 Servo- type level meter

Publications (2)

Publication Number Publication Date
CN101334307A true CN101334307A (en) 2008-12-31
CN101334307B CN101334307B (en) 2010-07-14

Family

ID=40197054

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200810117864 Active CN101334307B (en) 2008-08-06 2008-08-06 Servo- type level meter

Country Status (2)

Country Link
CN (1) CN101334307B (en)
WO (1) WO2010015132A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101566492B (en) * 2009-06-03 2011-04-20 吴军保 Liquid storage tank liquid-level meter
CN103604484A (en) * 2013-10-29 2014-02-26 北京利德曼生化股份有限公司 Liquid level detection device for full-automatic biochemical analyzer reaction disc
CN103954332A (en) * 2014-05-21 2014-07-30 范明军 Liquid level meter floater with oil-water interface measuring function
CN104596617A (en) * 2014-12-31 2015-05-06 石小强 Method for measuring liquid level in oil tank
CN106840308A (en) * 2017-03-23 2017-06-13 大庆市镁龙测控技术有限公司 Gradual change type detector for oil-water interface
CN109612553A (en) * 2018-12-06 2019-04-12 佛山科学技术学院 A kind of biological reagent liquid level sensor and control method
CN111256782A (en) * 2020-02-14 2020-06-09 孙淑芳 A measure servo level gauge for oil tank

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102658A1 (en) * 2011-12-30 2013-07-04 Endress + Hauser Gmbh + Co. Kg Electromechanical level gauge according to the displacement principle or plumb line principle for determining the filling level of a product in a container
CN112304395A (en) * 2020-10-23 2021-02-02 杨宏 Intelligent water level wireless monitoring liquid level meter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5824980A (en) * 1992-04-28 1998-10-20 Itt Flygt Ab Switch-actuating, liquid-level sensor
CN1257192A (en) * 1999-12-29 2000-06-21 绵阳高新区新力特传感电子有限公司 Electronic float displacement sensor
CN2695924Y (en) * 2003-08-07 2005-04-27 范明军 Level meter
CN2636206Y (en) * 2003-08-07 2004-08-25 范明军 Level meter capable of precisely and reliably measuring float force
CN2636207Y (en) * 2003-08-07 2004-08-25 范明军 Servo type level meter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101566492B (en) * 2009-06-03 2011-04-20 吴军保 Liquid storage tank liquid-level meter
CN103604484A (en) * 2013-10-29 2014-02-26 北京利德曼生化股份有限公司 Liquid level detection device for full-automatic biochemical analyzer reaction disc
CN103604484B (en) * 2013-10-29 2017-02-22 北京利德曼生化股份有限公司 Liquid level detection device for full-automatic biochemical analyzer reaction disc
CN103954332A (en) * 2014-05-21 2014-07-30 范明军 Liquid level meter floater with oil-water interface measuring function
CN104596617A (en) * 2014-12-31 2015-05-06 石小强 Method for measuring liquid level in oil tank
CN104596617B (en) * 2014-12-31 2018-08-03 石小强 A method of for measuring oil tank internal liquid level
CN106840308A (en) * 2017-03-23 2017-06-13 大庆市镁龙测控技术有限公司 Gradual change type detector for oil-water interface
CN109612553A (en) * 2018-12-06 2019-04-12 佛山科学技术学院 A kind of biological reagent liquid level sensor and control method
CN109612553B (en) * 2018-12-06 2020-07-28 佛山科学技术学院 Biological reagent liquid level detection device and control method
CN111256782A (en) * 2020-02-14 2020-06-09 孙淑芳 A measure servo level gauge for oil tank

Also Published As

Publication number Publication date
CN101334307B (en) 2010-07-14
WO2010015132A1 (en) 2010-02-11

Similar Documents

Publication Publication Date Title
CN101334307B (en) Servo- type level meter
CN202693071U (en) Measuring device for measuring liquid level near device and measuring system
CN203981240U (en) A kind of IC engine fuel oil consumption monitoring system
CN102980630B (en) A kind of intelligent digital capacitive liquid level sensor
CN201688893U (en) Magnetostriction liquid level measuring instrument
WO2014136071A1 (en) Fluid monitoring system
CN101592513A (en) Ocean engineering sink tank water level monitor
CN102778269A (en) Comprehensive measuring system for directly measuring oil consumption of vehicle fuel
CN102620794A (en) Bubble type water level meter
CN202485748U (en) Bubble type floodometer
CN105784062A (en) Method and device for detecting material level in material bin
CN205607488U (en) Liquid level monitoring device
CN106323416B (en) Capacitance type oil quantity measuring device
CN202109942U (en) Novel flow measuring device for measuring flow of sewage of open channel
CN101246032A (en) Oil amount sensor
CN217465904U (en) Water level detection device for hydraulic engineering
CN210400375U (en) Slope measuring device based on liquid level sensor
CN200941065Y (en) Magnetic oil level measurer
CN201344837Y (en) Microcomputer weighing measuring instrument
CN202994244U (en) Intelligent digital capacitance liquid level sensor
CN206514917U (en) A kind of contactless non-permeable material tank fill level detection means
CN202547735U (en) Water level measuring device of open channel dam trough
CN209979021U (en) Liquid level sensor and electric appliance with same
CN207366048U (en) A kind of liquid level gauge based on ultrasonic wave principle
CN203100825U (en) Sump water level measuring device for coal mine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Beijing Junyou Xinye Technology Co., Ltd.

Assignor: Fan Mingjun

Contract record no.: 2011990000643

Denomination of invention: Servo- type level meter

Granted publication date: 20100714

License type: Exclusive License

Open date: 20081231

Record date: 20110715